Without hills, not all industries can be generated, which means that with a default configuration you get errors. This is far from optimal, of course. This now forces that there is at least some hills, even when you are using very-flat. This is a stopgap solution, but a proper solution requires a full rewrite of the terrain generator, which is not a 2 minute (or even 2 week) job. To make sure flat is still flat-ish, reduce the default snow-line-height to 10, making it look a lot better on smaller maps. This is a compromise between being able to have flat maps and still having all industries on arctic.
40 KiB
40 KiB